
nav{
    
    height:50px;
}

#banner{
   
    height:700px;
}
/**背景颜色**/
nav ul li
{
    list-style: none;
    margin:0;
    float:right;
}

nav ul li,nav.logo
{
    display:inline-block;
    line-height: 50px;
    margin-right:20px;
}

nav ul li a
{
    line-height: inherit;
    text-decoration: none;
    display: inline-block;
    height:inherit;
    color: #fff;
}

nav ul li
{
   
    padding:10px;
}

#banner .inner
{
    max-width: 300px;
    text-align: center;
    margin:0 auto;
    position: relative;
    top:160px;
}
#banner .inner h1
{
    margin: 0;
}

button
{
    border:none;
    background: #333;
    color:#eee;
    padding:14px 40px;
    
}

#banner .inner .more
{
    margin-top:280px;
}

.sub-heading
{
    line-height: 30px;
    margin:20px;
}
 
.logo
{
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 1px;
    float:left;
}

.logo a
{
    color:#fff;
   
}

/**header ending**/
h1
{
    padding:12px;
    border-top: 2px solid #fff;
    border-bottom: 2px solid #fff;
}

h2
{
    font-size:30px;
    margin:0;
}

.green-section
{
    background:rgb(43, 179, 228);
    height:400px;
}

.wrapper
{
    max-width: 1088px;
    margin:0 auto;
    text-align: center;
}

.hr
{
    width:40%;
    margin:0 auto;
    color:#777;
    height：2px;
}

.icon-group
{
    margin-top: 200px;
}

.icon
{
    display:inline-block;
    height:80px;
    width:80px;
    background: #eee;
    border:1px solid green;
    transform:rotate(45deg);
    margin:20px;
}

.gray-section
{
    background:#252F34;
    color:#fff;
}

.gray-section .img-section
{
    width:45%;
}

.img-section img
{
    width: 100%;
}

.gray-section .text-section
{
    width:55%;
}

.article-preview > div
{
    float:left;
    font-size:0;
}

.article-preview:nth-child(odd)
{
    background-color: rgba(255,255,255,0.05)
}
.article-preview:after
{
    content:'';
    display:block;
    clear:both;
}
.text-section
{
    position:relative;
    top:68px;
    left:50px;
}

.text-section h2
{
    margin-bottom: 20px;
}
.text-section .sub-heading
{
    font-size；22px;
    margin-top:0;
}
.text-section p
{
    font-size: 18px;
    letter-spacing: 1px;
}

.text-section>*
{
    max-width:80%;
}

.purple-section
{
    padding:80px;
    background-color: #262149;
    color:#fff;
    height:1000px;
}

.purple-section .heading-wrapper
{
    text-align:center;
}

.card
{
    margin:0;
    float:right;
    width:50%;
    min-height:300px;
    padding；50px;
}

.card:nth-child(1)
{
    background: rgba(0,0,0,0.08);
}

.card:nth-child(2)
{
    background: rgba(0,0,0,0.04);
}

.card:nth-child(3)
{
    background: rgba(0,0,0,0.16);
}

.card:nth-child(4)
{
    background: rgba(0,0,0,0.12);
}

.card:nth-child(5)
{
    background: rgba(0,0,0,0.24);
}

.card:nth-child(6)
{
    background: rgba(0,0,0,0.20);
}

footer
{
    color：#fff;
    min-height:400px;
    text-align:center;
}
ul.share-group
{
    display:block;
    width:1080px;
    margin:0 auto;
    padding:50px;
}

.share-group li
{
    display:inline-block;
    padding;10px;
}
 .copy
{
    padding-bottom: 20px;
}
.main-wrapper
{
    background: url(banner.jpg);
    background-attachment: fixed;
    background-repeat:no-repeat;
    background-size: cover;
    background-position: center center;
}
header
{
    background:rgba(0,0,0,0.4);
}